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* ] (1915)<ref name="frs">{{Cite journal | last1 = Stratton | first1 = F. J. M. | authorlink1 = F. J. M. Stratton| doi = 10.1098/rsbm.1957.0004 | title = John Evershed 1864-1956 | journal = ] | volume = 3 | pages = 40–51| year = 1957 | jstor = 769351| pmid = | pmc = }}</ref> | ||
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Revision as of 14:28, 2 August 2017
| John Evershed | |
|---|---|
| Born | (1864-02-26)26 February 1864 Gomshall, Surrey, UK |
| Died | 17 November 1956(1956-11-17) (aged 92) Ewhurst, Surrey, UK |
| Known for | |
| Spouse | Mary Ackworth Orr Evershed |
| Awards |
|
| Scientific career | |
| Fields | Astronomy |
John Evershed CIE FRS FRAS (26 February 1864 – 17 November 1956) was an English astronomer. He was the first to observe radial motions in sunspots, a phenomenon known as the Evershed effect.
Biography
Evershed was born in Gomshall, Surrey to John and Sophia (née Price) Evershed. He made the discovery which bears his name while at Kodaikanal Observatory in 1909. After retirement in 1923 he set up a private observatory at Ewhurst, Surrey and built a large spectroheliograph of special design and another with high-dispersion liquid prism. He continued to study the wave-lengths of H and K lines in prominences, giving values of the solar rotation at high levels in different latitudes and at different phases of the solar cycle. Work continued until 1950 when the observatory closed and he presented some of his instruments to the Royal Greenwich Observatory at Herstmonceux. He was a founder member of the British Astronomical Association. He directed its Solar Spectroscopy Section (1893-1899) and Spectroscopic Section (1924-1926).
Awards and honours
In 1894 Evershed was elected a Fellow of the Royal Astronomical Society, in 1918 he was awarded the Gold Medal of the Royal Astronomical Society. He was elected a Fellow of the Royal Society in May, 1915. The Evershed crater on the Moon is named in his honor. He was awarded as a Companion of the Indian Empire on his retirement in 1923.
Personal life
Evershed was married to fellow astronomer Mary Ackworth Orr Evershed, with whom he co-authored some work. He died in Ewhurst, Surrey on 17 November 1956.
In 2015 his archive was acquired by the Science Museum, London.
References
- ^ Stratton, F. J. M. (1957). "John Evershed 1864-1956". Biographical Memoirs of Fellows of the Royal Society. 3: 40–51. doi:10.1098/rsbm.1957.0004. JSTOR 769351.
- "1957MNRAS.117..254. Page 254". articles.adsabs.harvard.edu. Retrieved 2 February 2017.
- "1957MNRAS.117..253. Page 253". articles.adsabs.harvard.edu. Retrieved 2 February 2017.
- Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved 22 August 2012.
- "Library and Archive Catalogue". Royal Society. Retrieved 1 December 2010.
External links
John Evershed in libraries (WorldCat catalog)
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